# VpsAnchorUpdate

Source: https://www.nianticspatial.com/docs/api/swift/NSDK.struct-VpsAnchorUpdate/

VpsAnchorUpdate

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## Declaration

struct VpsAnchorUpdate

## Summary

Contains the latest tracking information for a VPS anchor.
Anchor updates are retrieved via `anchorUpdate(anchorId:)` and provide the
most current information about an anchor's position, orientation, and tracking status. This
is a snapshot of the anchor, and the latest anchor update should be used every frame.

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## Properties

| Name | Type | Summary |
| --- | --- | --- |
| let anchorId | NSDKVpsAnchorId | The unique identifier of the anchor. |
| var debugDescription | String | A textual representation of this instance, suitable for debugging.Calling this property directly is discouraged. Instead, convert aninstance of any type to a string by using the `String(reflecting:)`initializer. This initializer works with any type, and uses the custom`debugDescription` property for types that conform to`CustomDebugStringConvertible`: struct Point: CustomDebugStringConvertible { let x: Int, y: Int var debugDescription: String { return "((x), (y))" } } let p = Point(x: 21, y: 30) let s = String(reflecting: p) print(s) // Prints "(21, 30)"The conversion of `p` to a string in the assignment to `s` uses the`Point` type's `debugDescription` property. |
| let trackingData | TrackingData? | Pose, confidence, and timestamp data available when an anchor is in `.limited` or`.tracked` states, |
| let trackingState | AnchorTrackingState | The current tracking state of the anchor, and associated data.Anchors in `.notTracked` and `.limited` states have an associatedvalue of type `AnchorTrackingState.Reason` which explains why the anchoris in its current state. |

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## Nested Types

### Structs

| Name | Type | Summary |
| --- | --- | --- |
| TrackingData | TrackingData | - |

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### Enums

| Name | Type | Summary |
| --- | --- | --- |
| AnchorTrackingState | AnchorTrackingState | Represents the current tracking state of a VPS anchor.The tracking state indicates how well the system is able to track an anchor's positionand orientation in the current environment. |

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## Relationships

conforms to:  Swift.CustomDebugStringConvertible